We rank the largest North American anime conventions by size and see which ones have grown and which have lost attendees in our annual look at the largest anime cons in the United States and Canada for the past year.

Christopher Ayres, well known in the anime convention community for his "Mock Combat for Cosplay" workshops, has been diagnosed with "End Stage C.O.P.D." and is facing a double lung transplant, multiple surgeries, and significant medical treatment. He's in need of financial help from the community.

Has anime convention attendance plateaued? Find out which of the largest cons have had slower growth and which have declined in our annual look at the largest anime cons in the United States and Canada for the past year.